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margin-top: 4em;
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#openbook-html .page-html .merge{
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margin-top: 1em;
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#openbook-html .page-html .tit{
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text-align: center;
margin-top: 2em;
margin-bottom: 0em;
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#openbook-html .page-html .tit1{
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font-size: 1em;
text-align: center;
margin-top: 1em;
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#openbook-html .page-html .tit1a{
display: block;
font-size: 1em;
text-align: center;
margin-top: 5em;
margin-bottom: 0em;
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#openbook-html .page-html .tit3{
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font-size: 1.2em;
text-align: center;
margin-top: 4em;
margin-bottom: 0em;
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#openbook-html .page-html .tit2{
display: block;
font-size: 1em;
text-align: center;
margin-top: 8em;
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#openbook-html .page-html .tita{
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font-size: 1em;
text-align: center;
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margin-bottom: 0em;
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#openbook-html .page-html .titt{
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text-align: center;
margin-top: 3em;
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#openbook-html .page-html .titta{
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#openbook-html .page-html .titt3{
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text-align: center;
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#openbook-html .page-html .tittb{
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text-align: center;
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#openbook-html .page-html .sera{
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text-align:center;
margin: 10em 0 0 0;
text-indent:0em;
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#openbook-html .page-html .none{
list-style-type: none;
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#openbook-html .page-html body{
text-align: justify;
}

#openbook-html .page-html a{
text-decoration: none;
}

#openbook-html .page-html /* For inline image */
.inline{
vertical-align: middle;
}

#openbook-html .page-html /*
img{
width: auto; height: auto; display: inline !important;
}

#openbook-html .page-html */
	/* For Box */
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padding-left: 0.50em;
padding-right: 0.50em;
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padding-bottom: 1.0em;
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margin-bottom: 1.50em;
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margin-right: 0em;
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#openbook-html .page-html /* For Box Title */
.bxt{
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text-align: center;
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margin-bottom: 1.00em;
margin-left: 1.0em;
margin-right: 1.0em;
font-weight: bold;
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#openbook-html .page-html /* For image caption */
.cap{
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margin-top: 0em;
margin-bottom: 2.50em;
font-size: 0.85em;
page-break-before: avoid;
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#openbook-html .page-html /* For National image */
.cn{
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font-weight: bold;
margin-top: 1.50em;
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text-decoration: underline;
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#openbook-html .page-html .cn1{
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font-weight: bold;
font-style: italic;
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margin-bottom: 1.2em;
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#openbook-html .page-html /* For Cover or Title Image or Half Title Pages*/
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text-align: center;
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#openbook-html .page-html /* For Copyright Text */
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margin-bottom: 0em;
text-indent: 0em;
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#openbook-html .page-html /* For Copyright Statement */
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margin-top: 1.0em;
margin-bottom: 0em;
text-indent: 0em;
font-size: 1.0em;
}

#openbook-html .page-html /* For Chapter Title */
.ct-0{
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text-align: center;
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margin-bottom: 1.50em;
margin-left: 1.00em;
margin-right: 1.00em;
font-weight: bold;
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#openbook-html .page-html .ct{
display: block;
text-align: center;
font-size: 1.60em;
margin-top: 3em;
margin-bottom: 6em;
margin-left: 1.00em;
margin-right: 1.00em;
font-weight: bold;
}

#openbook-html .page-html /* For footnote */
.fn{
display: block;
margin-top: 0em;
margin-bottom: 0em;
text-indent: 1.0em;
font-size: 0.85em;
}

#openbook-html .page-html .fn-1{
display: block;
margin-top: 0em;
margin-bottom: 0em;
text-indent: 0.0em;
font-size: 0.85em;
}

#openbook-html .page-html /* For headings (H1-H6) */
.h2{
display: block;
font-size: 1em;
text-align: center;
margin-top: 1.50em;
margin-bottom: 0.75em;
margin-left: 1.00em;
margin-right: 1.00em;
font-weight: bold;
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#openbook-html .page-html .h3{
display: block;
font-size: 1em;
text-align: center;
margin-top: 1.50em;
margin-bottom: 0.75em;
font-weight: bold;
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#openbook-html .page-html .h4{
display: block;
font-size: 1em;
text-align: left;
margin-top: 1.50em;
margin-bottom: 0.75em;
font-style: italic;
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#openbook-html .page-html /* For hanging */
.hang{
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margin-top: 0em;
margin-bottom: 0em;
margin-left: 1.7em;
text-align: left;
text-indent: -1.7em;
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#openbook-html .page-html .hang-1{
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margin-top: 1.5em;
margin-bottom: 0.5em;
margin-left: 1.5em;
text-align: left;
text-indent: -1.5em;
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#openbook-html .page-html .hang-4{
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margin-top: 1em;
margin-bottom: 0em;
margin-left: 1.7em;
text-align: left;
text-indent: -1.7em;
}

#openbook-html .page-html /* For refrence */
.ref{
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margin-top: 0em;
margin-bottom: 0em;
margin-left: 2.2em;
text-align: left;
text-indent: -2.2em;
}

#openbook-html .page-html /* For image */
.ser{
margin-top: 1.50em;
margin-bottom: 0.50em;
text-align: center;
}

#openbook-html .page-html /* For Table of content Heading */
.toc{
display: block;
margin-top: 3.0em;
margin-bottom: 6.0em;
text-align: center;
font-size: 1.50em;
margin-left: 1.0em;
margin-right: 1.0em;
font-weight: bold;
}

#openbook-html .page-html /* For Contents page paragraph style */
.toc-1{
font-size: 1.0em; 
margin-top: 1.0em;
margin-bottom: 0em;
margin-left: 0.80em;
text-indent: -0.80em;
text-align: left;
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#openbook-html .page-html .toc-2{
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margin-top: 0em;
margin-bottom: 0em;
margin-left: 2.70em;
text-indent: -1.80em;
text-align: left;
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#openbook-html .page-html .toc-3{
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margin-top: 0em;
margin-bottom: 0em;
margin-left: 0.90em;
text-indent: -0.90em;
text-align: left;
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#openbook-html .page-html .toc-4{
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margin-top: 1em;
margin-bottom: 0em;
margin-left: 2.60em;
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text-align: left;
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#openbook-html .page-html .toc-5{
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margin-top: 0em;
margin-bottom: 0em;
margin-left: 2.60em;
text-indent: -1.60em;
text-align: left;
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#openbook-html .page-html /* For para with text-indent */
.tx{
display: block;
margin-top: 0em;
margin-bottom: 0em;
text-indent: 1.0em;
font-size: 1.0em;
}

#openbook-html .page-html .tx-1{
display: block;
margin-top: 1.0em;
margin-bottom: 0em;
text-indent: 1.0em;
font-size: 1.0em;
}

#openbook-html .page-html /* For para no-indent */
.tx1{
display: block;
margin-top: 0em;
margin-bottom: 0em;
text-indent: 0em;
font-size: 1.0em;
}

#openbook-html .page-html .tx1-1{
display: block;
margin-top: 1.0em;
margin-bottom: 0em;
text-indent: 0em;
font-size: 1.0em;
}

#openbook-html .page-html /* For text right */
.txr-1{
margin-top: 1.0em;
margin-bottom: 0em;
text-indent: 0em;
font-size: 1.0em;
text-align: right;
}

#openbook-html .page-html ol{
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margin-bottom: 1.0em;
margin-left: 0em;
text-align: justify;
}

#openbook-html .page-html ul{
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margin-bottom: 1.0em;
margin-left: 0em;
}

#openbook-html .page-html li{
margin-top: 0em;
margin-bottom: 0em;
font-size: 1.0em;
}

#openbook-html .page-html /* For Table without Border */
table{
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margin-top: 0.2em;
margin-bottom: 0.2em;
text-align: left;
}

#openbook-html .page-html table td{
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padding-right: 0.50em;
padding-bottom: 0.10em;
vertical-align: top;
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#openbook-html .page-html .hang-2{
font-size: 1.0em; 
margin-top: 0em;
margin-bottom: 0em;
margin-left: 2.6em;
text-align: left;
text-indent: -1.7em;
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#openbook-html .page-html .hang-3{
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margin-top: 1em;
margin-bottom: 0em;
margin-left: 2.6em;
text-align: left;
text-indent: -1.7em;
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#openbook-html .page-html .apt{
display: block;
text-align: center;
font-size: 1.60em;
margin-top: 3em;
margin-bottom: 6em;
margin-left: 1.00em;
margin-right: 1.00em;
font-weight: bold;
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#openbook-html .page-html .txc{
margin-top: 2.00em;
margin-bottom: 1.50em;
text-align: center;
}

#openbook-html .page-html .txc-1{
margin-top: 0.00em;
margin-bottom: 0.00em;
text-align: center;
}

#openbook-html .page-html .txc-2{
margin-top: 1.00em;
margin-bottom: 1.00em;
text-align: center;
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